<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		
	</body>
	<script type="text/javascript">
		// 循环输出
		for(var a = 0; a < 5; a++){
			// 写咱们的业务逻辑
//			alert('哈哈')
		}
	</script>
</html>
